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METAGEN-36

This commit is contained in:
Hardy Ferentschik 2010-10-04 13:45:28 +00:00 committed by Strong Liu
parent ba43b863f5
commit d01ae40533
7 changed files with 130 additions and 15 deletions
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2
tooling/metamodel-generator/src/main/java/org/hibernate/jpamodelgen/Context.java
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@ -40,7 +40,7 @@ import org.hibernate.jpamodelgen.util.Constants;
* @author Hardy Ferentschik
* @author Emmanuel Bernard
*/
public class Context {
public final class Context {
private static final String DEFAULT_PERSISTENCE_XML_LOCATION = "/META-INF/persistence.xml";
/**

31
tooling/metamodel-generator/src/main/java/org/hibernate/jpamodelgen/JPAMetaModelEntityProcessor.java
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@ -19,6 +19,7 @@
package org.hibernate.jpamodelgen;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
@ -139,19 +140,28 @@ public class JPAMetaModelEntityProcessor extends AbstractProcessor {
}
private void createMetaModelClasses() {
// keep track of all classes for which model have been generated
Collection<String> generatedModelClasses = new ArrayList<String>();
for ( MetaEntity entity : context.getMetaEntities() ) {
context.logMessage( Diagnostic.Kind.OTHER, "Writing meta model for entity " + entity );
ClassWriter.writeFile( entity, context );
generatedModelClasses.add( entity.getQualifiedName() );
}
// we cannot process the delayed entities in any order. There might be dependencies between them.
// we need to process the top level entities first
// TODO make sure that we don't run into circular dependencies here
Collection<MetaEntity> toProcessEntities = context.getMetaEmbeddables();
while ( !toProcessEntities.isEmpty() ) {
Set<MetaEntity> processedEntities = new HashSet<MetaEntity>();
int toProcessCountBeforeLoop = toProcessEntities.size();
for ( MetaEntity entity : toProcessEntities ) {
if ( containedInEntity( toProcessEntities, entity ) ) {
// see METAGEN-36
if ( generatedModelClasses.contains( entity.getQualifiedName() ) ) {
toProcessEntities.remove( entity );
continue;
}
if ( modelGenerationNeedsToBeDeferred( toProcessEntities, entity ) ) {
continue;
}
context.logMessage(
@ -161,10 +171,15 @@ public class JPAMetaModelEntityProcessor extends AbstractProcessor {
processedEntities.add( entity );
}
toProcessEntities.removeAll( processedEntities );
if ( toProcessEntities.size() >= toProcessCountBeforeLoop ) {
context.logMessage(
Diagnostic.Kind.ERROR, "Potential endless loop in generation of entities."
);
}
}
}
private boolean containedInEntity(Collection<MetaEntity> entities, MetaEntity containedEntity) {
private boolean modelGenerationNeedsToBeDeferred(Collection<MetaEntity> entities, MetaEntity containedEntity) {
ContainsAttributeTypeVisitor visitor = new ContainsAttributeTypeVisitor(
containedEntity.getTypeElement(), context
);
@ -207,7 +222,7 @@ public class JPAMetaModelEntityProcessor extends AbstractProcessor {
continue;
}
String fqn = ( ( TypeElement ) element ).getQualifiedName().toString();
String fqn = ( (TypeElement) element ).getQualifiedName().toString();
MetaEntity alreadyExistingMetaEntity = tryGettingExistingEntityFromContext( mirror, fqn );
if ( alreadyExistingMetaEntity != null && alreadyExistingMetaEntity.isMetaComplete() ) {
String msg = "Skipping processing of annotations for " + fqn + " since xml configuration is metadata complete.";
@ -217,10 +232,10 @@ public class JPAMetaModelEntityProcessor extends AbstractProcessor {
AnnotationMetaEntity metaEntity;
if ( TypeUtils.containsAnnotation( element, Embeddable.class ) ) {
metaEntity = new AnnotationEmbeddable( ( TypeElement ) element, context );
metaEntity = new AnnotationEmbeddable( (TypeElement) element, context );
}
else {
metaEntity = new AnnotationMetaEntity( ( TypeElement ) element, context );
metaEntity = new AnnotationMetaEntity( (TypeElement) element, context );
}
if ( alreadyExistingMetaEntity != null ) {
@ -267,7 +282,7 @@ public class JPAMetaModelEntityProcessor extends AbstractProcessor {
@Override
public Boolean visitDeclared(DeclaredType declaredType, Element element) {
TypeElement returnedElement = ( TypeElement ) context.getTypeUtils().asElement( declaredType );
TypeElement returnedElement = (TypeElement) context.getTypeUtils().asElement( declaredType );
String fqNameOfReturnType = returnedElement.getQualifiedName().toString();
String collection = Constants.COLLECTIONS.get( fqNameOfReturnType );
@ -275,7 +290,7 @@ public class JPAMetaModelEntityProcessor extends AbstractProcessor {
TypeMirror collectionElementType = TypeUtils.getCollectionElementType(
declaredType, fqNameOfReturnType, null, context
);
returnedElement = ( TypeElement ) context.getTypeUtils().asElement( collectionElementType );
returnedElement = (TypeElement) context.getTypeUtils().asElement( collectionElementType );
}
if ( type.getQualifiedName().toString().equals( returnedElement.getQualifiedName().toString() ) ) {

33
tooling/metamodel-generator/src/test/java/org/hibernate/jpamodelgen/test/embeddablemappedsuperclass/EmbeddableAndMappedSuperClass.java Normal file
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@ -0,0 +1,33 @@
/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// $Id:$
package org.hibernate.jpamodelgen.test.embeddablemappedsuperclass;
import javax.persistence.Embeddable;
import javax.persistence.MappedSuperclass;
/**
* @author Hardy Ferentschik
*/
@Embeddable
@MappedSuperclass
public class EmbeddableAndMappedSuperClass {
}

46
tooling/metamodel-generator/src/test/java/org/hibernate/jpamodelgen/test/embeddablemappedsuperclass/EmbeddableMappedSuperClassTest.java Normal file
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@ -0,0 +1,46 @@
/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// $Id: BlobTest.java 20721 2010-09-27 12:40:10Z hardy.ferentschik $
package org.hibernate.jpamodelgen.test.embeddablemappedsuperclass;
import org.testng.annotations.Test;
import org.hibernate.jpamodelgen.test.util.CompilationTest;
import static org.hibernate.jpamodelgen.test.util.TestUtil.assertMetamodelClassGeneratedFor;
import static org.hibernate.jpamodelgen.test.util.TestUtil.assertNoCompilationError;
/**
* @author Hardy Ferentschik
*/
public class EmbeddableMappedSuperClassTest extends CompilationTest {
/**
* METAGEN-36
*/
@Test
public void testMetaModelsGenerated() {
assertMetamodelClassGeneratedFor( EmbeddableAndMappedSuperClass.class );
assertNoCompilationError(getCompilationDiagnostics());
}
@Override
protected String getPackageNameOfTestSources() {
return EmbeddableMappedSuperClassTest.class.getPackage().getName();
}
}

13
tooling/metamodel-generator/src/test/java/org/hibernate/jpamodelgen/test/util/CompilationTest.java
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@ -43,17 +43,22 @@ import org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor;
import static org.testng.FileAssert.fail;
/**
* Base class for annotation processor tests.
*
* @author Hardy Ferentschik
*/
public abstract class CompilationTest {
private static final Logger log = LoggerFactory.getLogger( CompilationTest.class );
private static final String PATH_SEPARATOR = System.getProperty( "file.separator" );
private static final String ANNOTATION_PROCESSOR_OPTION_PREFIX = "-A";
private static final String PROC_NONE = "-proc:none";
private static final String SOURCE_BASE_DIR_PROPERTY = "sourceBaseDir";
private static final String OUT_BASE_DIR_PROPERTY = "outBaseDir";
private static final String sourceBaseDir;
private static final String outBaseDir;
private List<Diagnostic> compilationDiagnostics;
static {
String tmp = System.getProperty( SOURCE_BASE_DIR_PROPERTY );
if ( tmp == null ) {
@ -69,6 +74,11 @@ public abstract class CompilationTest {
}
public CompilationTest() {
compilationDiagnostics = new ArrayList<Diagnostic>();
}
public final List<Diagnostic> getCompilationDiagnostics() {
return compilationDiagnostics;
}
@BeforeClass
@ -91,8 +101,9 @@ public abstract class CompilationTest {
compilationUnits = fileManager.getJavaFileObjectsFromFiles(
getCompilationUnits( outBaseDir )
);
options.add( "-proc:none" ); // for the second compile skip the processor
options.add( PROC_NONE ); // for the second compile skip the processor
compileSources( options, compiler, diagnostics, fileManager, compilationUnits );
compilationDiagnostics.addAll( diagnostics.getDiagnostics() );
fileManager.close();
}

18
tooling/metamodel-generator/src/test/java/org/hibernate/jpamodelgen/test/util/TestUtil.java
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@ -28,6 +28,8 @@ import java.lang.reflect.Field;
import java.lang.reflect.GenericArrayType;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;
import javax.tools.Diagnostic;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -209,10 +211,6 @@ public class TestUtil {
}
}
private static boolean hasFieldInMetamodelFor(Class<?> clazz, String fieldName) {
return getFieldFromMetamodelFor( clazz, fieldName ) != null;
}
public static Field getFieldFromMetamodelFor(Class<?> entityClass, String fieldName) {
Class<?> metaModelClass = getMetamodelClassFor( entityClass );
Field field;
@ -229,6 +227,18 @@ public class TestUtil {
return fcn.replace( PACKAGE_SEPARATOR, PATH_SEPARATOR );
}
public static void assertNoCompilationError(List<Diagnostic> diagnostics) {
for ( Diagnostic diagnostic : diagnostics ) {
if ( diagnostic.getKind().equals( Diagnostic.Kind.ERROR ) ) {
fail( "There was a compilation error. " + diagnostic.getMessage( null ) );
}
}
}
private static boolean hasFieldInMetamodelFor(Class<?> clazz, String fieldName) {
return getFieldFromMetamodelFor( clazz, fieldName ) != null;
}
private static class MetaModelFilenameFilter implements FileFilter {
@Override
public boolean accept(File pathName) {